baber/WOPTO huggingface dataset:
Patent GB-1314406-A (GB)
Title: Zig-zag sewing machines
IPC: D05B19/00
Filed: 1970-09-15
Abstract: 1314406 Sewing machine G M PFAFF AG15 Sept 1970 [16 Sept 1969] 43974/70 Heading D1G The feed control shaft 38 of a zig-zag sewing machine is controlled by way of driving members 28-37 from a cam 24, a manual adjustment device 54-68 for the selection of the transfer of movement from the cam to the shaft being pivoted, the device having a control shaft 57 journalled in a bell crank lever 59, 61 pivoted in the machine housing 1 and extending in a plane parallel to the plane of swing of driving member 32, one end of member 32 being connected by levers 54, 56 to the control shaft 57, the axis of the latter extending through one end of the swinging movement of member 32. Feed regulation and reversal. The feed dog 50 is carried on a feed bar 51 which receives feed lift motion from an eccentric 53 and feed advance motion from an eccentric 45, the degree of advance being related to the misalignment between the pin 40 and stud 46 determined by the angular position of the setting member 38. A crank 37 on the latter is connected to one arm of a bell crank lever 35 by a link 36, the other arm carrying a link 32 oscillated by a link 30 actuated by the follower 26 of a cam 24. The transmission ratio of the movements of links 30 and 36 is determined by the degree of misalignment between the axes of the pin 33 connecting lever 35 to link 32 and a pin 55 connecting a crank 56 and a link 54 pivoted to the link 30. Rotation of setting shaft 57 of an adjustment device 58 varies this misalignment. Secured to the shaft 57 is a lever arm 63 having a cam edge 81 abutting a stop 82, the arm 63 being connected by a link 64 with a lever 65 pivoted with a cranked lever 59, 61 to a common pivot 60. The lever arm 59 is biassed by spring 79 to urge the cam edge 81 against its stop and is connected at 69 to a stitch length setting lever 70, 71 having a slide 74 presenting a sloping abutment edge 76 to a pin 78 secured to the machine housing. Levers 65, 61 are adjustably secured together by a screw 68 cooperating with a scale 62, the reading on that scale indicating the amount by which the stitch length set at the lever 70, 71 is reduced. In a modification the setting lever and link 71, 70, 69 is replaced by a calibrated adjustable stop co-operating with the cam edge 81 in place of the fixed stop 82 (Fig. 4, not shown).  Needles moving laterally (Figs. 1 and 3, not shown). A needle bar gate (10) is connected by a pusher rod (11) to a rocker bar (12) one end of which is connected to a block (14) sliding in an adjusting slide (13) rotatable by a knob (15) to set the stitch width; an intermediate portion of the rocker bar (12) being connected (16, 17, 20) to a follower engaging a cam (23) driven from the shaft 7 connected to the feed cam 24.
Patent GB-1310475-A (GB)
Title: Maritime platform assembly
IPC: E02B17/00
Filed: 1971-09-21
Abstract: 1310475 Offshore structures ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES (ELF) 21 Sept 1971 [21 Sept 1970] 43995/71 Heading E1H A buoyant offshore drilling or production platform 3 is carried on a buoyant upper column 4, in turn mounted through a ball joint 7 on a buoyant lower column 12. The column 12 is mounted either rigidly or through a further ball joint on a non-buoyant base 15 resting on the sea-bed 2. Guide pins 16, 10 provided on the base 15 and on a support 9 at the upper end of the lower column 12 respectively, extend through slots in sockets 8 secured to the lower ends of the columns, to guide them into position on installation, which is effected by the successive controlled lowering, using supporting cables, of base 15, lower column 12 and upper column 4. Hydraulic locking pistons 11, 17 are then activated from the surface to secure the base and columns together.
Patent GB-1346214-A (GB)
Title: Heat-exchange devices
IPC: F28D7/12
Filed: 1971-09-21
Abstract: 1346214 Leakage detection; liquid sodium steam generator INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 21 Sept 1971 [22 Sept 1970] 44039/71 Headings F4S and F4A In a tubular heat exchanger 1 mounted in a double wall 5 and particularly for heat exchange between liquid sodium and water, a composite tube 3 comprising a copper tube 15 disposed between two steel tubes 13 and 14 separates the liquid sodium from the water which flows through an annular space 9 formed around the tube 3. The copper tube 15 is formed with grooves 16 on both its sides, the grooves leading to a leakage detection chamber 17 which is provided with an outlet 18 located in the cavity 19 defined by the double wall 5. The inlet 8 and outlet 7 for the sodium are disposed on one side of the double wall 5 with the inlet 10 and outlet 11 for the water/steam being disposed on the other side. A double walled tube 4 consisting of an inner tube 23 and outer tube 24 with a gas gap therebetween serves to constrain the liquid sodium to flow along an extended path between the inlet 8 and outlet 7.
Patent GB-1155098-A (GB)
Title: Conveyor apparatus
IPC: B65G19/26
Filed: 1966-10-03
Abstract: 1,155,098. Conveyer systems. RAPISTAN Inc. 3 Oct., 1966 [4 Oct., 1965], No. 44102/66. Heading B7L. A conveyer apparatus Fig. 1, comprises track means for supporting articles 14, e.g. pallets, the track means comprising a first portion 12 oriented in one direction and a second portion 16 oriented in another direction, e.g. at right angles to the portion 12, and extending from a: juncture with the portion 12; a single article advancing drives means, e.g. an endless chain 30, which extends along the portion 12 to advance articles 14 to the juncture and along the portion 16 to advance articles 14. away from the juncture, the drive means 30 being arranged to disengage articles 14 on the portion 12 on reaching the juncture without altering the orientation of the articles and thereafter to reengage the articles at the juncture to advance them along the portion 16 whilst they still retain the same orientation. The conveyer portion 12 includes a second straight section 13 connected to the first straight section by a curved section. Both track sections 12, 16 comprise a pair of spaced side rails each supporting spaced rollers over which the pallets move. Each pallet has a pair depending side flanges at right angles to each other and respectively engageable by a pivoted dog on the chain 30 on the track portions 12 and 16 as described with reference to Fig. 2 (not shown) . As shown in Fig. 1, the chain 30 changes direction at the juncture of the track portions 12, 16 by passing around sprockets 70, 72 of which 72 may be motor driven. At the juncture a driving dog is depressed by a camming plate 66 to be disengaged from the flange at the right handend of the article 14. After the chain and depressed dog have passed round the sprocket 70 the dog leaves the plate 66 and rises to re-engage, as it passes around the sprocket 72, the article flange at the upper end of the article 14, as seen in Fig. 1, to propel it along the track portion 16. In another embodiment the two track portions are parallel and extend in opposite: directions, the driving chain at the adjacent ends of the portions passing around four sprockets and the articles being moved from one end to the adjacent end over swivel casters, Fig. 4 (not shown).
Patent GB-1078295-A (GB)
Title: Motion picture camera
IPC: G03B1/56
Filed: 1964-10-29
Abstract: 1,078,295. Cine cameras. EASTMAN KODAK CO. Oct. 29, 1964 [Oct. 30, 1963], No.44207/64. Heading G2E. A self-threading cine camera has a film chute which is pivotable to a first holding position "H" in which it engages and releasably holds take-up spool 12 against rotation by the drive motor through a slipping clutch while directing film into a slot in the spool hub, a second threading position "T" in which it releases the spool 12 for driven rotation to wind the film on to the hub, and a third inoperative position 'T' in which the motor is stopped. The chute comprises guides 26, 28 extending from a bracket 24 pivoted at pin 34 and urged anticlockwise by spring 32, guide 28 having a lip 40 to engage the slot in the spool hub. Handle 80 is used to manually shift sliding lever 48, mounted as in Fig. 4 (not shown), to move the chute into its threading position by means of spring 44 in a plastics tube 50 connecting arm 46 on lever 48 to arm 42 on bracket 24. Lever (48) is connected to the camera release button through a sliding rod (70) as in Fig. 5 (not shown), whereby when lever (48) is moved to the right against spring (62) the motor operates. Pointer 74 indicates the positions "I#, "H", "T#, in which lever 48 is held by detent means. , In a modification, lever 48 is eliminated and the film chute has an elongated arm (71) as a Fig. 7 (not shown) with a handle (73) for movement to the three positions.
Patent GB-1099257-A (GB)
Title: Production of folded thermoplastic strips for sliding clasp fasteners
Inventor: CUCKSON ERIC ENGEL
IPC: B29D5/02
Filed: 1966-10-04
Abstract: 1,099,257. Moulding stringers for sliding fasteners. W. E. CUCKSON & SON PROPRIETARY Ltd. Oct. 4, 1966, No. 44210/66. Heading B5A. [Also in Division E2] A stringer for a sliding fastener comprises two parallel yarn threads 7 with transverse, spaced thermoplastic elements 12 with at least one enlarged portion moulded between them. It is made as shown in Fig. 1, by passing the yarn threads 7 over a roller 20 which contains the mould and on to which the thermoplastic material is injected by screw 8, lip 8A shaping the material to a thin strip. Excess plastic 20B is sliced off by knife 20A and the finished article 6 then leaves the roller 20. The ends 11 and enlarged central portions 12 may be rounded. In use the strip is bent to give a " U " shaped cross-section and is attached to the edge of the material by adhesive or by stitching across neck 13A.
Patent GB-1081917-A (GB)
Title: Guided, wheeled, powered toy vehicles and road or track sections therefor
IPC: A63H18/08
Filed: 1964-10-30
Abstract: 1,081,917. Toy vehicles. TRANSOGRAM CO. Inc. Oct. 30, 1964 [March 24, 1964], No. 44319/64. Heading A6S. A toy comprises a vehicle with self-contained drive, and track sections arranged to be positioned in detached spaced relationship, said sections having means for guiding the vehicle thereover. The vehicle has rubber tyred driven rear wheels and hard narrow track cone-shaped front wheels which are easily guided by the side walls of track sections 52 which may be arranged up to 3 feet or more apart, the side walls of the track sections being arranged funnel wise at the entry part thereof. Sections 55 of flat scenery may be fitted by flexing and inserting behind pins 57. Catapult track sections may be provided. The guiding means may be augmented by a guide groove in a curved portion of the track, cooperating with a depending stud on the car, or by wrap-around front and rear bumpers respectively. The vehicle of the embodiment is driven by an electric motor the enlarged ends of the shaft of which make driving connection with the tyres of the wheels. The drive could alternatively be clockwork.
Patent GB-444090-A (GB)
IPC: C10B57/18
Abstract: 444,090. Coke ovens. ROGERS, F.H.,181, Queen Victoria Street, London.-(Koppers Ges., H. ; 29, Moltkestrasse, Essen, Germany) March 18, 1935, No. 8459. [Classes 51 (ii) and 55 (i)] For the purpose of improving the yield of benzene and its homologues from the distillation of coal in coke ovens, the distillates, directly they are evolved, are subjected to a uniform heat treatment between 600 and 800‹ C. during the whole coking period, either in the space above the charge, or in a channel in the oven cover. Coke ovens 1 are heated by pairs of heating flues 2, 3 connected at their upper and lower ends through openings 4, 5 for circulation of the heating gases. The space 7 above the charge is heated by passages 14 connected by valve controlled ducts 10, 11 with the heating flues 2, 3, the valves or dampers 12 being reached through openings 13. If the wall between the cracking or gas collecting chamber 7 and the upper heating passages 14 is made thin, the cracking chamber may be heated higher than the coking chamber. Brick work 15 prevents access of heat from the flues 2, 3 to the chamber 7. Cooling shafts 16 with thin walled covers 17 may, on removal of a top cover 17a be used for cooling the space 7. An ascension pipe 18 is provided at one end of the space 7, and at the other end is a valve controlled U-shaped pipe 30 through which the distillates from one oven may be passed through one or more ovens in series before being removed through an ascension pipe. To regulate the temperature in the collecting chamber 7, the level 8a of the charge may be raised or lowered by a levelling bar 22, the height of which is adjusted by an elbow lever 24 operated by a bar 25 and driving gear 26. A charge supporting shield 28 may be adjusted in height according to the height of the charge. In Fig. 4, a cracking chamber 34 communicates by valve controlled passages 35 with the gas space in the oven below, and is provided with cooling shafts 39. Specification 419,125 is referred to.
Patent GB-970493-A (GB)
Title: Synthetic latex foam rubber resistant to combustion
IPC: C08J9/00
Filed: 1960-12-28
Abstract: A latex foam rubber contains a synthetic rubber polymer of a conjugated diene, a synthetic rubber-reinforcing resin selected from resinous styrene/conjugated diene copolymers, resinous acrylonitrile butadiene-1:3-copolymers and polystyrene and an oil having a plasticizing effect on the rubber and resin, the oil being present in an amount of at least 5 parts by weight per 100 parts of rubber and in combination with sufficient resin to retard combustion of the rubber. Examples are given, the foaming being effected mechanically.
Patent GB-1158984-A (GB)
Title: Indicator Scale Change Mechanism.
IPC: G01R1/02
Filed: 1966-10-05
Abstract: 1,158,984. Indicating apparatus. HONEYWELL Inc. Oct. 5, 1966 [Oct. 7, 1965], No. 44567/66. Heading G1J. A scale-change mechanism for an indicator with an index 65 defining an index path comprises a rotatable scale bearing member 26 supporting a plurality of scales 37, 40, 41 arranged end to end around the axis of rotation thereof, each of which scales conforms to the shape of the index path, a movable support on which the said member 26 is rotatably mounted whereby the said member is translatable towards and away from the index path, said axis being arranged orthogonally with respect to the index path, means for causing rotation of the said member 26 about its axis of rotation to select any one of the plurality of scales for registration with a predetermined portion of said path, and registration means 35, 44 for bringing the selected scale into contiguity with the said portion of the path. The member 26 is mounted on a shaft 24 mounted in one end of a lever 13 which itself rotates about a shaft 12, the other end of lever 13 having a cam 15 which engages a shaft 20. Shaft 20 is rotationally connected through gear elements 23, 47, 51, 52, 14, 27 and 24 to scale-bearing member 26. In use the shaft 20 is pulled to the right to free pins 53 to allow rotation through a prescribed angle. When the shaft is released spring 45 pulls arm 13 to the right and hence shaft 20 to the left so that pin 53 is guided into a groove in bore 57, (Fig. 2, not shown) and pin 35 is guided into a groove 44 to lock the member 26 against rotation.
Patent GB-1061985-A (GB)
Title: Pulse regenerating circuits
IPC: H04L25/24
Filed: 1963-11-14
Abstract: 1,061,985. Data transmission; pulse shaping circuits. TELETYPE CORPORATION. Nov. 14, 1963 [Nov. 20, 1962], No. 44970/63. Heading H3T and H4P. A regenerative repeater comprises a static latching switch, e.g. a silicon controlled rectifier 11. Clock pulses, at about the mid-point of each bit, are applied to the control electrode by means of relay 32, 22. Binary data from source 30 operates relay 24, 18. If contact 18 is closed, the rectifier 11 will not conduct until contact 22 opens to provide a timing pulse, whereupon conduction takes place. Conduction continues via contact 18 after contact 22 has closed again. The regenerated signal is the inverse of the signal from the data source. To eliminate undesirable operation due to contact resistance and stray capacitance the circuit is modified as in Fig. 2 (not shown). If contacts 18, 22 are controlled direct by mechanical linkage from a transmitter such as that described in Specification 760,566, relays 32, 29 are not used.
Patent GB-1475564-A (GB)
Title: Photographic camera
IPC: G03B7/00
Filed: 1974-10-17
Abstract: 1475564 Cameras EASTMAN KODAK CO 17 Oct 1974 [17 Oct 1973] 45021/74 Heading G2A A photographic camera comprises lenses 9, 11 selectively positionable on the optical axis of the camera, diaphragm shutter blades 2, 3 which are releasable by operation of a member 1 for respective opposed sliding movement in the directions B, C to a position in which apertures 2a, 3a define an exposure aperture, an exposure aperture opening pre-selector 5 for selecting the desired exposure aperture, and a spring-loaded slider 6 which is set by the pre-selector 5 and which co-operates with an abutment arm 10a on the mount 10 for the lens 11 and with a spring-loaded lever 4 pivotably movable about a shaft 13 when the shutter blades 2, 3 move, to limit the movement of the shutter blades and so the exposure aperture formed by the apertures 2a, 3a in accordance with the setting of the preselector 5 and with the focal length of the lens selected. When the lens 9, which is a standard focal length lens, is used teeth 6a on the slider 6 are engaged by a lug 4c on the lever 4 to move the slider downwardly to engage the arm 10a and to disengage a lug 6c from an arm 7a of a pivoted spring-loaded shutter resetting member 7 which has an abutment 7b for engaging the lever 4 to reset the shutter. When the lens 11, which is a telescopic lens, is positioned on the optical axis the arm 10a is moved out of the position shown so that the slider 6 does not engage the arm 10a but moves further down whereby the exposure aperture is increased for a given setting of the pre-selector 5. The spring-loaded lever 4 has slots engaged by pins 2d, 3d on the shutter blades 2, 3 so that when the member 1 is operated the lever is pivoted anticlockwise to engage the lug 4c with the teeth 6a and the shutter blades 2, 3 are moved in the directions B, C. When the pre-selector 5 is moved it pivots the slider 6 about a pin 22 to dispose the teeth 6a in the position corresponding to the desired exposure aperture. The shutter resetting member 7 is rotated against its spring loading by means of a shutter cocking slider. More than two lenses may be provided for selective use, arms similar to the arm 10s being provided on the mounts for the lenses or the arm 10a being stepped appropriately. The exposure aperture may be provided by means separate from a shutter which is used only to expose a film located behind the exposure aperture. The pre-selector 5 may be automatically controlled in response to a photocell affected by scene illumination.
Patent GB-1186127-A (GB)
Title: Method and Apparatus for Doping Semiconductors.
IPC: H01J37/317
Filed: 1968-09-25
Abstract: 1,186,127. Doping with ions. DOW CORNING CORP. 25 Sept., 1968 [5 Jan., 1968], No. 45487/68. Heading BIS. A doped rod may be pulled from a melt of semi-conductor material, e.g. Si or Ge, by impingement on the surface of the melt by a focused ionic beam of dopant, e.g. B, Al, Sb, P, Ag, Au, in a partial vacuum. The ions may be generated from solid or gas. They may originate from at least one electrode of semiconductor material containing the dopant. The ion beam may be focused to 1/10th of the melt area. A doped rod having a resistivity of 100 ohm. cm. may be produced using an ion beam current of 6 microamps and an accelerating potential of 5 kilovolts. A resistivity gradient across the rod may be produced by focusing a plurality of ion beams at different spaced points. The melt may be formed by induction, infra-red or electron beam heating. As shown, a crystal 11 being pulled from a molten zone 12 formed on a rod 13 by an induction coil 14, is doped by impingement of a beam 16 of dopant ions on zone 12.
Patent GB-1120353-A (GB)
Title: Monoperoxyketals
IPC: C10L1/18
Filed: 1965-10-27
Abstract: Compounds of the formula <FORM:1120353/C2/1> wherein R1 is an alkyl, cycloalkyl or aryl radical containing up to 10 carbon atoms and the aryl group may be alkyl-substituted, R2 is an alkyl or cycloalkyl radical containing up to 10 carbon atoms, or R1 and R2 together with the central carbon atom may form a cycloaliphatic ring, R3 is an alkyl, cycloalkyl, aryl or aralkyl group containing up to 10 carbon atoms, which may be alkyl-substituted, R4 is an alkyl radical or a tert.-aralkyl group, which may be alkyl-substituted, containing up to 10 carbon atoms, or a group of formula <FORM:1120353/C2/2> and R2 may be represented by a group of the formula <FORM:1120353/C2/3> wherein R5 is an alkylene, cycloalkylene, alkenylene, alkinylene or arylene radical containing up to 10 carbon atoms, or R4, when R2 is not a radical of the above Formula III, may be a group of the formula <FORM:1120353/C2/4> wherein R7 is the same as R3 and R6 is an alkylene, cycloalkylene, alkenylene, alkinylene or arylene radical containing up to 10 carbon atoms and may be alkyl-substituted, may be obtained (A) by reacting alkylvinyl ether or a 1-alkenylalkyl-ether with hydrogen peroxide or an organic hydroperoxide in the presence of a particular solid catalyst in a heterogeneous phase reaction (see British Specification 1,120,354), (B) by adding organic hydroperoxides or hydrogen peroxide to an alkylvinyl ether using homogeneous acid catalysts, (C) by the transperoxidation of an acetal with an organic hydroperoxide, (D) by reaction between an alpha-substituted ether and hydrogen peroxide or an alkylhydroperoxide, or (E) by reaction between a saturated ether and a hydroperoxide, catalyzed by a transition metal salt.
Patent GB-1011224-A (GB)
Title: A pulse modulator
IPC: H04B14/02
Filed: 1961-12-21
Abstract: 1,011,224. Pulse modulators; tunnel diode pulse circuits. WESTERN ELECTRIC CO. Inc. Dec. 12, 1961 [Dec. 30, 1960], No. 45787/61. Headings H4L and H3T. A pulse modulator comprises a trigger circuit and a differentiating circuit connected in series, the trigger circuit comprising an active device having a negative resistance region in its current voltage characteristic. A resistive load and a D.C. bias are connected to the device for providing a load line and bias point such that operation can take place in two stable states. Arrangements are incorporated for superimposing an input signal alternating about a zero axis on the D.C. bias, such that the passages of the signal through zero in one direction cause the active device to switch to one stable state, and when the signal reaches a predetermined level in the opposite direction the active device is switched to the other stable state, so that a square wave is produced which is applied to the differentiating circuit to produce a pulse train which marks at least every other zero crossing of the input alternating signal. The invention is of particular application to representing a frequency-modulated information signal by a pulse position signal. A frequency modulated signal is mixed in unit 12 with a local oscillator signal so as to beat the carrier to a frequency at least twice the highest base-band frequency of the modulating intelligence. The resultant signal is applied to a tunnel diode 15 which is biased by a battery 16 and resistance 17 to the peak A in its current voltage characteristic (Fig. 2). The increase in voltage across the diode caused by a positive swing causes a sharp reduction in current through the diode, while a negative swing causes a sharp increase. This leads to the application of a voltage waveform 31 (Fig. 3) to the condenser 19. This is differentiated by the C.R. circuit 19, 20 and the negative spikes are clipped by the diode 21 to produce the required pulses marking the positions of the zero crossings.